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I manually updated my Nexus 7 to 4.2 using the Android SDK without being rooted. Since then, I have been having some problems. Everything seems to be a little slower and I can't even find the Developer Tools menu in settings anymore. Is there anyway to revert back to the previous version and wait for the OTA?
If not, does anyone know where I can find the developer tools menu?
Sir Walter said:
I manually updated my Nexus 7 to 4.2 using the Android SDK without being rooted. Since then, I have been having some problems. Everything seems to be a little slower and I can't even find the Developer Tools menu in settings anymore. Is there anyway to revert back to the previous version and wait for the OTA?
If not, does anyone know where I can find the developer tools menu?
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Click to collapse
No joke....go to About Tablet in Settings, then click the "Build number JOP40C" a bunch of times.
gokart2 said:
No joke....go to About Tablet in Settings, then click the "Build number JOP40C" a bunch of times.
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Click to collapse
That worked, thank you. I am wondering, am I able to Flash the complete image from Google without being rooted? I would be using the SDK. If I do this, would it delete my app data (savegames, etc)?
If your not rooted and 100% stock, just take the OTA update....? I don't think it deletes data if you do the OTA, but if it's the complete 4.2 file that's like ~260mb, it will over-write data. I was rooted and did the OTA and all my apps were still there. Titanium Backup if rooted as well.
Does it present any security issues to unlock a bootloader without rooting? I don't mean if you lose your phone, I mean is there a security issue with any apps you install?
That's always a risk. Read playstore comments before installing anything.
Has nothing to do with being rooted or not...or boot loader state.
Sent from my Moto X cellular telephone...
Cozume said:
Does it present any security issues to unlock a bootloader without rooting? I don't mean if you lose your phone, I mean is there a security issue with any apps you install?
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Click to collapse
You could have asked at AC and I would answer it over there.
Unlocking bootloader and/or running custom recovery is a big risk. When you unlocked bootloader, all the partitions in your phone can be accessed and modified. I can flash custom recovery to your phone. Custom recovery give full root access to the phone. It is then easily possible to copy all your data from the phone and also disable the lock for your phone. Although if you encrypt your phone, then custom recovery will require the password to give access to the /data partition, which is where all the user datas are. I guess if someone is determine enough, then they can make an image copy of your phone and try to decrypt it.
If you want to keep your data safe, disable USB Debugging (because exploits can be used with ADB to gain access to the phone), use stock recovery and lock bootloader. However, if the phone brick then you can't get back your data in the phone.
eksasol said:
Unlocking bootloader and/or running custom recovery is a big risk. When you unlocked bootloader, all the partitions in your phone can be accessed and modified.
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Click to collapse
but can an app do this? And if so, what permissions would the app need to do this. Also, I am not talking about flashing a custom recovery; just an unlocked bootloader.
eksasol said:
If you want to keep your data safe, disable USB Debugging (because exploits can be used with ADB to gain access to the phone), use stock recovery and lock bootloader.
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Click to collapse
but can an app do harm to your phone if you have USB debugging enabled? I know a person who finds your phone can. I am asking about apps.
Cozume said:
but can an app do this? And if so, what permissions would the app need to do this. Also, I am not talking about flashing a custom recovery; just an unlocked bootloader.
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If the phone isn't root, then probably not, unless there is some security holes it can exploit. With root it is possible to modify the whole system. Motorola and HTC have an extra layer to prevent simple root to modify the system partition, but as you can see, just visit dev section if you want to remove it.
but can an app do harm to your phone if you have USB debugging enabled? I know a person who finds your phone can. I am asking about apps.
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Click to collapse
It is possible for apps to get access to sensitive data and change system settings with USB Debugging enabled. Helium required it turned on to make backup of your contacts, sms and apps data for example.
If you have an older Android phone, you don't need to do anything except to enable USB Debugging and run a program to install root. But we're trusting apps like SuperUser and SuperSU to control apps access to root, so that's a layer of protection. But KitKat is much safer now.
You don't need root to install malware and virus to your phone. Just download an infected app or use unreliable app stores like Aptoide. Also if you have the option "Unknown sources" enabled, which almost all of us do, the app can utilize it to automatically install other apps in the background.
Point I'm trying to make is, if the phone have unlocked bootloader, or even locked bootloader with custom recovery, and someone else have a hold of it, then all bets are off.
eksasol said:
If the phone isn't root, then probably not, unless there is some security holes it can exploit. With root it is possible to modify the whole system.
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great, that is what I want to know. I knew a human being in possession of your phone could do more damage if it were unlocked, which is why I got rid of the bootloader unlocked warning message.
BTW - do you know if flashing the original kit kat boot logo to replace the bootloader warning message presents a problem for accepting the OTA update to 4.4.2?
eksasol said:
Motorola and HTC have an extra layer to prevent simple root to modify the system partition, but as you can see, just visit dev section if you want to remove it.
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Click to collapse
Ok so then on my Moto X, since flashing a new logo doesn't even require root, it shouldn't have affected any system files and then it would be safe to take the OTA after removing the bootloader unlocked warning?
eksasol said:
It is possible for apps to get access to sensitive data and change system settings with USB Debugging enabled. Helium required it turned on to make backup of your contacts, sms and apps data for example.
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Click to collapse
good to know!
eksasol said:
But we're trusting apps like SuperUser and SuperSU to control apps access to root, so that's a layer of protection.
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Click to collapse
ok, that is how I understand it. Unless I give the app access to root through SuperSU, it can't.
eksasol said:
But KitKat is much safer now.
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Click to collapse
why is this?
eksasol said:
Also if you have the option "Unknown sources" enabled, which almost all of us do, the app can utilize it to automatically install other apps in the background.
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Click to collapse
thanks, Amazon app store required that to be enabled to load apps from their app store.
Cozume said:
great, that is what I want to know. I knew a human being in possession of your phone could do more damage if it were unlocked, which is why I got rid of the bootloader unlocked warning message.
Click to expand...
Click to collapse
BTW - do you know if flashing the original kit kat boot logo to replace the bootloader warning message presents a problem for accepting the OTA update to 4.4.2?
Ok so then on my Moto X, since flashing a new logo doesn't even require root, it shouldn't have affected any system files and then it would be safe to take the OTA after removing the bootloader unlocked warning?
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Click to collapse
That depend on the checking that the dev put in the OTA package. On the Nexus device, if you are missing any original system APK, modify the radio partition, modify GPS setting file, or modify the build.prop, etc, the OTA will fail. So I assume the same with Moto X OTA. The safest bet is to make sure all the partition are original first (except the /data partition where your data resides) before receiving an OTA.
ok, that is how I understand it. Unless I give the app access to root through SuperSU, it can't.
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Click to collapse
Yes. The actual component of root isn't the SuperSU app, but a 'su' binary. Without the SuperSU app, anything can have full fledged root access. You need SuperSU to control that access.
why is this?
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Click to collapse
For many reason, I'm not a developer so I can only talk about what I know and seen from a user perspective. It used to be that you can flash an exploited update.zip to modify the stock recovery of Android, in order to make it ignore the package signatures, so the recovery could flash any package without the correct signature. Now there are no such exploits for latest stock recovery. With USB Debugging enabled in Android 4.3 or newer, it would not even allow access when connected to a PC unless you accept to trust that PC in a pop up dialog in the phone, I'm not sure if it's mean the phone is totally invulnerable to exploits (like memory overflow), you'll have to ask someone smarter. Also apps like Framaroot that I just linked won't work anymore.
eksasol said:
That depend on the checking that the dev put in the OTA package. On the Nexus device, if you are missing any original system APK, modify the radio partition, modify GPS setting file, or modify the build.prop, etc, the OTA will fail. So I assume the same with Moto X OTA. The safest bet is to make sure all the partition are original first (except the /data partition where your data resides) before receiving an OTA. My guess is if you tried it with modified logo it will either fail or overwrite it.
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Click to collapse
OK, I think I am going to unroot and flash back to stock just to be sure.
Thanks again! I would hit the thanks button but I used up all my thanks today and it won't let me.
Cozume said:
OK, I think I am going to unroot and flash back to stock just to be sure.
Thanks again! I would hit the thanks button but I used up all my thanks today and it won't let me.
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Click to collapse
You already gave me enough thanks at AC.
eksasol said:
You already gave me enough thanks at AC.
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what is your user name there?
Cozume said:
what is your user name there?
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someguy
Why so paranoid? Have you read any posts on xda of such things....I haven't.
If you are sideloading apps the risk increases for sure. But apps on the play store would have tonnes of comments about it if the app was screwing up the system.
Sent from my Moto X cellular telephone...
eksasol said:
someguy
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Click to collapse
ok great!
kj2112 said:
Why so paranoid? Have you read any posts on xda of such things....I haven't.
If you are sideloading apps the risk increases for sure. But apps on the play store would have tonnes of comments about it if the app was screwing up the system.
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Click to collapse
I am just trying to understand how all of this works.
Okay one thing why are you trying to unlock the bootloader without rooting?? Or did I read everything wrong? And yes unlocking the bootloader allows you to write to every partition of the phone. Except when HTC and you're s-on you have to manually flash the boot.img via fastboot. But with moto. There is no point in unlocking the bootloader if you're not doing anything. Two it voids your warranty. Three it can disable functions on your phone like features, camera options I think and yeah etc. But if you follow instructions you won't have any problems ever rooting or shouldn't if you semi have a brain and know how to follow instructions if not well you can somewhat brick :$ I don't mess with moto much but I have. Sorry this thread was in my latest and scrolling through xda. Lol. You can unlock you're phone straight from the moto website. But if you're not rooting. Eh no point.
Sent from my Rezound using xda-developers app. CyanogenMod 11. S-off
I just read this thread, particularly page 2 why we can't relock the Motorola bootloader (yet it seems), unlike Nexus devices, I think it's really bad for security.
edit: link: http://forum.xda-developers.com/showthread.php?t=2575586&page=2
pball52998 said:
Okay one thing why are you trying to unlock the bootloader without rooting??
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Click to collapse
I rooted but a friend of mine is unlocked but not rooted. She wanted to be unlocked because it wipes your device so wanted to do it before she got the phone all set up. She is afraid of rooting. Anyhow, maybe she shouldn't have unlocked but she did.
pball52998 said:
There is no point in unlocking the bootloader if you're not doing anything. Two it voids your warranty.
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Click to collapse
She has the dev ed so it doesn't void her warranty. And she may want to Wifi tether in the future so I told her she needs to unlock and root for that so get the dev ed. She did and unlocked but is afraid to go any further.
pball52998 said:
You can unlock you're phone straight from the moto website. But if you're not rooting. Eh no point.
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Click to collapse
It increases the phone's resale value to unlock it.
eksasol said:
I just read this thread, particularly page 2 why we can't relock the Motorola bootloader (yet it seems), unlike Nexus devices, I think it's really bad for security.
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Click to collapse
I thought I saw a thread where someone could relock the Moto X bootloader.
And what about this?
Re-Lock Your Bootloader
It should just be a command like fastboot_oem_lock or something but idk. And two if she has the dev edition. Root that thing!!! XD that's what it's for!! Just install twrp via goo manager. Wipe factory reset all that good stuff. After making a back up. Notice after backing up. Then flashing rom and gapps In that order. I mean its a lot easier than htc rezound or htc one, htc in general and such lol.
Sent from my crappy apple iPad.....
pball52998 said:
Wipe factory reset all that good stuff. After making a back up.
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Click to collapse
well, I didn't wipe and do a factory reset when I rooted so I guess I did it wrong, lol! That is what she is afraid of - not doing it right and messing up her phone.
And I don't have a backup, but do I really need one if I can flash the factory images?
I just ran through the process of installing the boot.img to disabled encryption and wanted to verify that this worked.
Is there a menu or something I can tell that the encryption is disabled?
Also is there a way to disable the OTA update notification, it wants to install Lollipop when I already have it installed...
thomas.owns said:
I just ran through the process of installing the boot.img to disabled encryption and wanted to verify that this worked.
Is there a menu or something I can tell that the encryption is disabled?
Also is there a way to disable the OTA update notification, it wants to install Lollipop when I already have it installed...
Click to expand...
Click to collapse
Your first question is asked/answered about a dozen times in the encryption thread.
If you aren't on LRX210 then your device isn't up to date and should be notifying you of the OTA.
akellar said:
Your first question is asked/answered about a dozen times in the encryption thread.
If you aren't on LRX210 then your device isn't up to date and should be notifying you of the OTA.
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Click to collapse
Alright, fair enough.
I disabled encryption but do I need to update first on stock before disabling it?
thomas.owns said:
Alright, fair enough.
I disabled encryption but do I need to update first on stock before disabling it?
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Click to collapse
If you go to settings, security and touch encryption it will ask if you want to encrypt the phone. If you don't update first you may need to decrypt again.
I've unlocked the bootloader and rooted the phone with the help of the Nexus Root Toolkit by WugFresh.
I now have it setup just how I want it and I don't want an OTA to kill root or change anything so something stops working (phone isn't for me, but I've set it up just right for someone with special needs).
I've read conflicting information on whether or not an OTA will actually install on a rooted phone or not. Some things say that it won't if you've changed anything at all while others say it might be possible.
Is there some system file I can rename or something to ensure the phone doesn't get a system update unless I do it manually?
LaTropa64 said:
I've unlocked the bootloader and rooted the phone with the help of the Nexus Root Toolkit by WugFresh.
I now have it setup just how I want it and I don't want an OTA to kill root or change anything so something stops working (phone isn't for me, but I've set it up just right for someone with special needs).
I've read conflicting information on whether or not an OTA will actually install on a rooted phone or not. Some things say that it won't if you've changed anything at all while others say it might be possible.
Is there some system file I can rename or something to ensure the phone doesn't get a system update unless I do it manually?
Click to expand...
Click to collapse
no matter how many times you will try to update via ota, you will not be able to. if any files change from stock, any at all, you wont be able to install an ota. especially with root.
LaTropa64 said:
I've unlocked the bootloader and rooted the phone with the help of the Nexus Root Toolkit by WugFresh.
I now have it setup just how I want it and I don't want an OTA to kill root or change anything so something stops working (phone isn't for me, but I've set it up just right for someone with special needs).
I've read conflicting information on whether or not an OTA will actually install on a rooted phone or not. Some things say that it won't if you've changed anything at all while others say it might be possible.
Is there some system file I can rename or something to ensure the phone doesn't get a system update unless I do it manually?
Click to expand...
Click to collapse
Root solved your problem ha ha
simms22 said:
no matter how many times you will try to update via ota, you will not be able to. if any files change from stock, any at all, you wont be able to install an ota. especially with root.
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Click to collapse
And sometimes, even if one is 100% stock, those pesky OTAs won't install.
cam30era said:
And sometimes, even if one is 100% stock, those pesky OTAs won't install.
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Click to collapse
right. any system file changes prevent install.
Awesome. Thanks.
Will it even attempt to install an update, and if so, does it only attempt once and then give up so you don't get stuck in a loop?
Install a custom recovery. Done. OTAs require the stock recovery in order to flash files.
LaTropa64 said:
Awesome. Thanks.
Will it even attempt to install an update, and if so, does it only attempt once and then give up so you don't get stuck in a loop?
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Click to collapse
itll only attemp if you let it(it needs your approval to update), otherwise itll only tell you that an update is available. if you let it, itll try, but fail. if you boot up, youll be where you were before.
Apparently I rooted it incorrectly because it was able to update. I just got a call and the phone had rebooted and went through optimizing X of X apps and now many of the tasker profiles I had set are no longer working.
It wouldn't have optimized a bunch of apps if it hadn't updated the OS, or no?
LaTropa64 said:
Apparently I rooted it incorrectly because it was able to update. I just got a call and the phone had rebooted and went through optimizing X of X apps and now many of the tasker profiles I had set are no longer working.
It wouldn't have optimized a bunch of apps if it hadn't updated the OS, or no?
Click to expand...
Click to collapse
you can always look at your android version in aboy phone, to see if it updated or not.
LaTropa64 said:
Apparently I rooted it incorrectly because it was able to update. I just got a call and the phone had rebooted and went through optimizing X of X apps and now many of the tasker profiles I had set are no longer working.
It wouldn't have optimized a bunch of apps if it hadn't updated the OS, or no?
Click to expand...
Click to collapse
You'll find update or not optimizing apps happens a lot especially if you clear cache etc...
Your fine otas can't install with root
Just flash twrp it will cone in handy incase you brick it one day you'll have twrp to fastboot fix or sideload a rom to recover from.
ONE NOTE: Never ever ever relock your bootloader with the toolkit you'll be screwed. Always leave bootlaoder unlocked. I just had to rma manufacturer phone replacement I relock mine with toolkit and couldn't flash stock firmware or oem unlock again.
Sent from my LGMS769 using XDA Free mobile app
simms22 said:
you can always look at your android version in aboy phone, to see if it updated or not.
Click to expand...
Click to collapse
I'll take a look the next time I get over there. It's not my phone, I just set it up for someone with accessibility issues and wanted it to stay the same as the day I set it up but apparently it's not done that.
I have a Droid Turbo that is currently on version 5.1 (23.21.44) and I just recently unfroze the system update notifications for my phone because of the news of MM. I am currently rooted and have an unlocked bootloader but I don't have TWRP installed and would rather not install it for now if I don't have to.
The system update that it is trying to push to my phone isn't MM, instead it is version 23.21.49.en.US. Is it safe to just take this update while being rooted and with an unlocked bootloader? I'm also not sure how many updates I'll have to make my way through before reaching the MM update, but if there are other updates, should it also be safe to go ahead with those as well? I know I could install TWRP and flash the MM ROM that way but I would prefer to do the updates officially if it is not risking a bricked phone.
Thanks for any advice.
EDIT: I forgot to finish the title of the thread...
AirJordanTS said:
I have a Droid Turbo that is currently on version 5.1 (23.21.44) and I just recently unfroze the system update notifications for my phone because of the news of MM. I am currently rooted and have an unlocked bootloader but I don't have TWRP installed and would rather not install it for now if I don't have to.
The system update that it is trying to push to my phone isn't MM, instead it is version 23.21.49.en.US. Is it safe to just take this update while being rooted and with an unlocked bootloader? I'm also not sure how many updates I'll have to make my way through before reaching the MM update, but if there are other updates, should it also be safe to go ahead with those as well? I know I could install TWRP and flash the MM ROM that way but I would prefer to do the updates officially if it is not risking a bricked phone.
Thanks for any advice.
EDIT: I forgot to finish the title of the thread...
Click to expand...
Click to collapse
It's safe, but it will be unsuccessful until you unroot your phone and undo any other system modifications that you've done (xposed, for example). There's a huge part of the update script that checks every single file in your system partition to make sure nothing has been modified.
Ok great, thanks.
The only other modification I can think that I've made is enabling mobile Hotspot through editing a setting somewhere. Do you know if that would be affected or would need changed back?
AirJordanTS said:
Ok great, thanks.
The only other modification I can think that I've made is enabling mobile Hotspot through editing a setting somewhere. Do you know if that would be affected or would need changed back?
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Click to collapse
You did that by modifying /system/build.prop. That change might be okay, but I would change it back if I were you just to be safe. The change is going to be overwritten anyway once the OTA is done.
AirJordanTS said:
Ok great, thanks.
The only other modification I can think that I've made is enabling mobile Hotspot through editing a setting somewhere. Do you know if that would be affected or would need changed back?
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Click to collapse
It's possible it may miss overlooking that. The worst that could happen was the update just doesn't take. It fails and nothing is changed. There is a pure MM official version that you can Flash in TWRP. It will update everything, radios and all, but will not relock the bootloader. I recommend you download Titanium Backup and backup all of your apps and their data to be restored after the update. A factory reset is recommended after the update. Also, don't forget to back up all of your photos, documents, music, etc. 24.81.5 is MM. Your update was a prep for MM.
Thanks for the advice guys.
I didn't realize it but I had TWRP installed so I decided to flash a stock ROM and proceed with the OTA updates from there. The problem currently is that I'm being locked out of my phone because of the Google "verify your account" page. I reset my account password on that page and now I'm not able to log in.